Photoluminescence that persists for an extremely short time after excitation.受激后持续时间很短的光致发光。
The process of photoluminescence refers to the radioative recombination of electronhole pairs generated by shining high energy light on a crystal.光致发光过程就是高能量光子照射到晶体上之后，晶体所产生的电子一空穴对的辐射复合过程。
